#include <iostream>
using namespace std;
int main(){
    // if分支

    if(10<2){
        cout<<"10大于2"<<endl;
    }
    int x=99,y=100;
    //求 x y最大值为多少？
    if(x>y){
        cout<<"最大值为"<<x<<endl;
    }else{ //否则
        cout<<"最大值为"<<y<<endl;
    }
    int age=3;
    if(age>=60 || age<=3){
       cout<<"免票进门\n";
    }else{
       cout<<"买票去吧\n";
    }
    // 杨老师规定月考成绩在[90,100]之间为A  [80,90) 为B  [70,80)为C
    // [60,70)D 其余为不及格
    double score=88; //小明的成绩  
    if(score>=90 && score<=100){
        cout<<"成绩A"<<endl;
    }else if(score>=80 && score<90){
        cout<<"成绩B"<<endl;    
    }else if(score>=70 && score<80){
        cout<<"成绩C"<<endl;
    }else if(score>=60 && score<70){
        cout<<"成绩D"<<endl;
    }else if(score<60 && score>=0){
        cout<<"成绩不及格"<<endl;
    }

    return 0;
}